Long-tailed Sylph vs Mountain Hemlock

Aglaiocercus kingii compared with Tsuga mertensiana

Key Differences

• Long-tailed Sylph is Least Concern while Mountain Hemlock is Not Evaluated.

Taxonomic Classification

Rank	Long-tailed Sylph	Mountain Hemlock
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Coniferophyta (Conifers)
Class	Aves (Birds)	Pinopsida (Conifers)
Order	Apodiformes (Apodiformes)	Pinales (Pines & Allies)
Family	Trochilidae	Pinaceae (Pine Family)
Genus	Aglaiocercus	Tsuga
Species	Aglaiocercus kingii	Tsuga mertensiana

Conservation Status

Long-tailed Sylph

LC — Least Concern

Mountain Hemlock

NE — Not Evaluated

Physical Characteristics

Attribute	Long-tailed Sylph	Mountain Hemlock
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Sylph

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Mountain Hemlock

Habitat

Typically found in temperate and boreal forests, often at higher elevations.

Range

Distributed across Canada, Denmark, Iceland, Norway, and Sweden.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway